155 results about "Exit surface" patented technology

This invention relates to the field of laser special light source technology, and provides a laser-driven white light source device, which includes a laser source, an optical system, a gas-loaded structure, and a high-voltage driving component. The laser source is suitable for providing a laser beam; the optical system is suitable for focusing the laser beam; the gas-loaded structure is located on the side of the optical system away from the laser source, and the center of the gas-loaded structure corresponds to the focusing area of ​​the laser beam; the high-voltage driving component is suitable for igniting plasma within the gas in the gas-loaded structure; wherein, the gas-loaded structure has a gas carrier incident surface and a gas carrier exit surface arranged opposite each other along the propagation path, and the curvature of the gas carrier incident surface and the gas carrier exit surface is constant in the direction perpendicular to the propagation path. This application can reduce the generation of aberrations, thereby reducing the size of the emitting point and resulting in better consistency of the emitting point; at the same time, the uniformity of white light output and the spectral radiance are also better.

Lens for a vehicle lighting device, wherein the lens is designed to produce a light distribution for zone III of the dipped beam, the lens comprising: a lens body (1) with a light-entry surface and a light-emission surface (14), characterized in that an upper and middle region (11) of the light-entry surface of the lens body (1) in the installed position is a flat surface in the top-bottom direction (Z), while a lower region (12) of the light-entry surface of the lens body (1) in the installed position is a flat surface which is inclined from top to bottom in the installed position against the direction of light emission, wherein a generating structure for zone III of the low beam (13) is provided on or integrally formed with the lower region (12) of the light-entry surface in the installed position, which generating structure for zone III of the low beam (13) comprises several protrusions which serve to continuously and uniformly emit light rays with an illuminance that meets the legal requirements and which project beyond the lower region of the light-entry surface (12),wherein the generation structure for zone III of the dipped beam (13) generates the light distribution for zone III of the dipped beam.

The utility model provides a kind of optical path turning element, it is equipped with incident plane, emergent surface, at least one first reflecting surface and at least one second reflecting surface, optical path turning element is equipped with multiple microstructures, multiple microstructures are set to at least one second reflecting surface and / or at least one first reflecting surface, microstructure is arc or broken line shape extension;Wherein, effective light enters optical path turning element by incident plane, after being reflected by at least one first reflecting surface, it is shot to the outside of optical path turning element by emergent surface;After stray light enters optical path turning element by incident plane, at least part stray light is reflected under the action of microstructure along the direction of incident plane, to make at least part stray light be shot to the outside of optical path turning element by incident plane.The optical path turning element can effectively eliminate stray light, improve imaging quality, and be conducive to reducing the volume of optical path turning element.The utility model further provides a kind of camera module and electronic equipment.

A multi-color LED illumination device and specifically a lens comprising a cylindrical opening extending into the lens from a light entry region at which one or more LEDs are configured. A concave spherical surface extends across the entirety of the light exit region of the lens, and a TIR outer surface shaped as a CPC extends between the light entry region and the light exit region. There are various diffusion surfaces placed on the sidewall surface of the cylindrical opening, as well as its upper planar surface and the exit surface of the lens. Lunes can also be configured on the sidewall surfaces of the cylindrical opening. The combination of lunes, diffusion elements, and the overall configuration of the lens provides improved color mixing and output brightness using three interactions in a first portion of light and two interactions in a second portion of light. Those interactions includes two refractions either with an intermediate reflection or not, all of which are necessary to achieve the improved performance of the multi-color LED illumination device and lens hereof.

Described is an optical device including: a printed circuit board; an LED mounted on the printed circuit board; a light guide layer that embeds the LED therein and includes a reflective surface and an exit surface; and a reflective pattern layer formed on the reflective surface of the light guide layer, wherein the reflective surface of the light guide layer includes a curved shape such that light of the LED is entirely internally reflected using the reflective pattern layer and emitted from the exit surface. The optical device implements a stereoscopic light emitting image using the light guide layer including the curved reflective surface that entirely internally reflects LED light in a lamp structure of a vehicle.

The present application provides a vehicle lamp module, a vehicle lamp, a vehicle, a projection method, and a related apparatus. The vehicle lamp module is applied to a vehicle. The vehicle lamp module comprises a light source, a first adjustment assembly, and a deflection mirror body. The light source is mounted on a vehicle body of the vehicle, and light of the light source is emitted through a light exit surface of the light source. The first adjustment assembly is mounted on the vehicle body, the first adjustment assembly is connected to the deflection mirror body, and the first adjustment assembly is capable of adjusting the orientation of an exit surface of the deflection mirror body located in a light path of the light source, so that light passing through the deflection mirror body is deflected. Embodiments of the present application can achieve the flexible adjustment of an illumination area of the vehicle lamp module and expand a field of view of the vehicle lamp module, thereby achieving a wide range of illumination and projection.

Provided is a wavelength conversion member manufacturing method and a wavelength conversion member including a sintered body having improved light-tightness of a surface other than a light incident surface and a light exit surface. A wavelength conversion member manufacturing method including a sintered body having a light incident surface, a light exit surface, and a light reflection surface different from the light incident surface and the light exit surface includes: a sintered body preparation step of preparing a sintered body including inorganic particle and phosphor particle; and a recess formation step of performing acid treatment on the sintered body to form a plurality of recesses in the light reflection surface of the sintered body.

An optical component includes a light guide (2), which has an incident portion (2a) composed of a plurality of incident prisms having incident surfaces, an exit surface (2b) for emitting incident light outward, and an upper surface (2f) and a lower surface (2g) connecting the incident portion (2a) and the exit surface (2b). The direction along the extension direction of the incident prisms is defined as the y-direction, and the upper surface (2f) and the lower surface (2g) are inclined with respect to the z-direction, which is orthogonal to the y-direction, at angles ωu and ωd, respectively. With respect to the inclination reference angle ω, the upper surface (2f) and the lower surface (2g) satisfy ωu≤ω and ωd≥ω. The inclination reference angle ω is relative to the angle sin... ‑1 (sin(θx+α) / n) cosψx The calculated ωo satisfies ωo-10°≤ω≤ωo+10°. ψx is the tilt angle of the incident surface, α is the incident angle of the external light (L1), and θx is the tilt angle of the light guide (2) relative to the vertical direction.

An imaging optical system includes an infrared light absorbing element, an infrared light reducing film and a plate element in order along a paraxial path. The infrared light absorbing element is made of an infrared light absorbing plastic material, and the infrared light absorbing element is configured to refract a light. The infrared light reducing film is closer to an image surface of the imaging optical system than an incident surface of the infrared light absorbing element to the image surface of the imaging optical system. The plate element is disposed between the infrared light reducing film and the image surface, the plate element includes a translucent portion, a holder portion and a taper structure coating. The taper structure coating is disposed on at least one of an incident surface and an exit surface of the translucent portion.

The application discloses a light guide and a vehicle lamp module, which comprises a light guide body, the light guide body is in a flat structure, the rear end of the light guide body is provided with one or more light guide parts, the light guide parts are used for guiding high beam light into the light guide body, the front end of the light guide body is provided with a notch, the notch is used for avoiding part of low beam light, the edge of the notch forms a light exit surface of the light guide body, the light exit surface is used for high beam light, the upper surface of the light guide body is provided with a light reflection layer, the light reflection layer comprises a reflection plane, the reflection plane is used for reflecting part of low beam light, so that the low beam light forms a clear cut-off line. The light guide and the vehicle lamp module provided by the application can form a clear cut-off line without using a baffle, can reduce the use of a baffle and a driving mechanism and other accessories, effectively reduces the volume of the vehicle lamp module, and reduces the energy consumption for switching between low beam and high beam.

This invention discloses a lens and a wall washer light. The optical axis of the lens is parallel to the optical axis of the light source. The lens has a mounting surface for installation, and a light source groove for placing the light source is formed on the mounting surface. The peripheral wall and bottom surface of the light source groove form the incident surface of the lens. The lens is characterized by having an irregularly shaped structure located at the far end of the direction of light emission. This irregularly shaped structure has an exit surface for light to exit. The irregularly shaped structure is configured to allow light entering through the incident surface to undergo total internal reflection and direct reflection before exiting through the exit surface. By designing a lens with an irregularly shaped structure, this invention allows light initially directed away from the wall to undergo total internal reflection before exiting through the exit surface, along with light directly impacting the exit surface, and then directed towards the far end of the wall. This achieves convergence of light with a large incident angle, resulting in more light exiting the first exit surface and greater illumination brightness. This achieves uniform illumination of the wall surface by the emitted light, relying solely on its own structure without depending on a lampshade.

A lighting device disclosed in an embodiment of the invention comprises a substrate; a light source disposed on the substrate; and a light guide member disposed on the substrate and the light source, wherein the light guide member includes an exit surface and a first reflective surface facing the exit surface, the first reflective surface includes a plurality of reflective portions having different heights with respect to an upper surface of the substrate, and each of the plurality of reflective portions may include a plurality of first surfaces inclined with respect to the upper surface of the substrate.

The application provides a light control element and a lamp. The light control element comprises a body. The body comprises an incident surface and an exit surface arranged oppositely, and a plurality of microstructures are formed by recessing inward from the exit surface on the body, wherein the microstructures comprise a plurality of inclined side surfaces. The inclined side surfaces are configured to totally reflect incident light when the incident angle of the incident light irradiated to the incident surface is greater than a preset angle, and refract and emit the incident light when the incident angle of the incident light irradiated to the incident surface is less than or equal to the preset angle. Compared with the prior art, the light control element of the application can inhibit the direct emission of large-angle incident light, optimize the emission mode of small-angle incident light, and improve the light emission rate and anti-glare effect by arranging the microstructures on the body.

The present application relates to the field of optics, in particular to a broadband achromatic superlens with a large field of view. The superlens is composed of a cylindrical base embedded with a non-equal-height circular hole array and a nano-pillar array with a multi-ring structure. The non-equal-height circular hole array serves as the light entrance surface, and the nano-pillar array serves as the light exit surface. The circular hole array on the base has different depths and radii, and the nano-pillar array unit structure layer is composed of multiple ring bands, each ring band corresponding to a wavelength to achieve broadband achromatism. The nano-pillars arranged in the unit structure layer have various structures, such as cylindrical, annular, cross-shaped, etc. Different nano-pillar structures are used from the center to the outside, thereby reducing the mutual interference between adjacent ring bands. The materials of the unit structure layer and the base are transparent or low-absorption materials, and appropriate materials are selected according to different wavelength ranges. The superlens proposed in the present application can focus light beams of any wavelength range under a large field of view and a large spectral bandwidth.

Optical device designed to display an image of an outside scene of an area of ​​a blind spot (13) to a viewer (10) when an obstacle (12) is within a viewer's field of vision, wherein the optical device comprises: a light guide (2) with an incident surface (2a) onto which outside scene light (LV), coming from the area of ​​the blind spot (13), falls, a first surface (2b) having several flat sections (3) and several prism sections (4), wherein the outside scene light incident from the incident surface first reaches the first surface, and a second surface (2c) which is arranged opposite the flat sections of the first surface; wherein a light-shielding section (51, 52) is arranged on a surface of the light guide or at a position away from the light guide to block an external light (LD) that would enter the light guide, wherein The flat sections of the first surface totally reflect the outside scene light, which propagates within the light guide, towards the second surface. the second surface totally reflects the outdoor scene light, which was reflected through the flat sections, towards the first surface, Each of the prism sections has an exit surface (4a) for emitting outwards a portion of the external scene light incident from the incident surface and a portion of the external scene light reflected by the second surface, and an inclined surface (4b) which is arranged opposite to the viewer with respect to the exit surface. the light-shielding section comprises a first light-shielding section (51) designed to block external light incident on the inclined surface and a second light-shielding section (52) designed to block external light incident on the flat section in a predetermined direction. in a cross-sectional view that includes a normal to the exit surface and a normal to the flat section, θ is an angle formed between the normal to the flat section and a line connecting a center of a predetermined exit surface and an eye point center (15) of the observer, L is a distance between the center of the predetermined exit surface and the center of the eye point. DL is a distance between the eye center and an outer edge of the eyelids (14) of the viewer from the light guide in a direction perpendicular to the line connecting the center of the predetermined exit surface and the eye center, θmin is an angle defined by θ-tan -1 (DL / L) is represented a straight line A passes through a point (4c) where the exit surface and the inclined surface intersect, and the straight line A is symmetrically incident on the flat section at the angle θmin with respect to the normal to the flat section, a straight line B runs parallel to the straight line A and intersects at a point where the inclined surface and the flat section intersect, the straight line A intersects the flat section at a point P1, the straight line B intersects the flat section at a point P2, the exit surface intersects the flat section at a point P3, A distance Fa is defined between point P1 and point P3. A distance Fb is defined between point P2 and point P3. Fa < Fb is satisfied, and the second light-shielding section is arranged such that it covers straight line A and straight line B.

A display apparatus includes a first micro-display configured to emit a first light beam; a first meta-optical structure configured to adjust a propagation direction of the first light beam; a second micro-display configured to emit a second light beam, and a wavelength of the first light beam is different from a wavelength of the second light beam; a light combining element including a light exit surface, and the light combining element being configured to transmit the first light beam and the second light beam through the light exit surface; a projection lens configured to receive the first light beam and the second light beam from the light exit surface; and an optical waveguide configured to receive the first light beam and the second light beam from the projection lens, wherein the projection lens project the first light beam and the second light beam to the optical waveguide in different directions.

The lighting module disclosed in the embodiments of the present application includes a circuit board, a plurality of light emitting devices arranged on the circuit board in a first direction, a resin layer for sealing the plurality of light emitting devices, and a reflective member provided on a surface of the resin layer and having an opening portion on one side thereof, wherein the resin layer includes an exit surface portion in which the opening portion is provided, a curved surface portion on an opposite side of the exit surface portion, and an upper surface portion provided on the curved surface portion and the exit surface portion, the light emitting devices overlap the curved surface portion in a vertical direction, the upper surface portion of the resin layer has a horizontal surface, a vertical direction width of the opening portion is smaller than a vertical direction height of the exit surface portion, and the light emitting devices can be arranged closer to a lower end of the curved surface portion than to a lower end of the exit surface portion.

The present application relates to a kind of equal optical path adjustment and detection system and method for unpolarized light splitting prism, equal optical path adjustment and detection system includes adjusting mechanism, fixed base, wide spectrum light source, first wedge optical flat, second wedge optical flat, first confocal distance measuring module, second confocal distance measuring module and interference detection component;The plane of first wedge optical flat is towards the first exit surface of first half prism;The plane of second wedge optical flat is towards the exit surface of second half prism;The measuring end of first confocal distance measuring module is towards the inclined plane of first wedge optical flat;The measuring end of second confocal distance measuring module is towards the inclined plane of second wedge optical flat.The present application establishes external optical reference surface by two pieces of wedge optical flat, independently measures air gap of wedge optical flat and corresponding half prism by combining first confocal distance measuring module and second confocal distance measuring module respectively, makes air optical path difference zero, eliminates group velocity dispersion mismatch.

A vehicle display device that displays a virtual image with high brightness while suppressing the enlargement of a backlight unit. The vehicle display device includes a display (10) of a light-transmitting type; a backlight unit (20) that projects light to a back surface (10a) of the display to cause display information to be emitted as display light from a front surface (10b) of the display; at least one reflection member (40) that reflects the display light emitted from the display and projects the display light to a projection target (Rwf); and an external housing (51) that houses the members, the backlight unit including a light source (21), a Fresnel lens (22) that causes emergent light of the light source to be incident from an incident surface (22a) and emitted as parallel light orthogonal to the incident surface from an emission surface (22b), and a microlens (23) that causes the parallel light to be incident from an incident surface (23a) and emitted as diffused light from an emission surface (23b) toward the back surface of the display, the Fresnel lens and the microlens being arranged so that the emission surface (22b) faces the incident surface (23a).

The invention relates to a headlamp system for a motor vehicle and to a motor vehicle comprising such a headlamp system. The headlamp system has at least one headlamp which has a housing comprising a receiving space for functional components, a closure disc arranged on the housing which closes the receiving space at the front side, a light module arranged in the receiving space, the light module comprising a light source and an optical system, a cover frame which is fixedly arranged in the receiving space, a pivotably mounted support frame, the optical system being fixed in the support frame, the support frame being pivotably mounted in the housing about a pivot axis in order to at least convert the optical system from a first end position into a second end position and from the second end position into the first end position, in the first end position the light exit surface being arranged in a covered region which is prevented from being observed from the outside by means of the cover frame, in the second end position the light exit surface being arranged outside the covered region which is prevented from being observed from the outside by means of the cover frame.

Radiation structure layer and antenna device belong to the technical field of antennas, and aim to avoid or improve the dispersion effect of the edge area of the antenna, so that the phases of the electromagnetic waves emitted from the exit surface of the antenna are consistent. The radiation structure layer comprises a first metasurface, a second metasurface, and a transmission structure stacked between the first metasurface and the second metasurface.

This application relates to the field of optical condenser technology, specifically disclosing an optical condenser assembly including a first optical condenser and a second optical condenser arranged vertically. The second optical condenser includes a second focusing light-incident section, a second focusing light-transmitting section, and a second focusing light-exiting section. The second focusing light-incident section includes an inner light-incident section and an outer light-incident section; the second focusing light-transmitting section includes an inner light-exiting section and an outer light-transmitting section; the second focusing light-exiting section includes an inner light-exiting section and an outer light-exiting section. At least one set of the inner light-incident section, inner light-transmitting section, inner light-exiting section, outer light-incident section, outer light-transmitting section, and outer light-exiting section are respectively provided. The light-exiting surfaces of the inner light-exiting section and the outer light-exiting section are connected to form a curved surface. The upper boundary of the light-exiting surface of the outer light-exiting section is higher than the lower boundary of the light-exiting surface of the first optical condenser, and the upper boundary of the light-exiting surface of the inner light-exiting section can be fitted with the lower boundary of the light-exiting surface of the first optical condenser. Secondly, this application discloses an optical module including the above-mentioned optical condenser assembly.

The present application relates to the technical field of vehicle lamps, and discloses a high‑beam lighting module. The high‑beam lighting module comprises an outer lens unit, an inner lens unit, and a light source; the outer lens unit is of an integrally formed structure and comprises a light exit surface, a first total reflection surface, and a second total reflection surface; first parallel light is incident on the light exit surface, converges through the light exit surface, and is then successively reflected by the first total reflection surface and the second total reflection surface to form second parallel light, wherein the longitudinal convergence degree is greater than the lateral convergence degree; light emitted from the light source passes through the inner lens unit to form intermediate parallel light, and the intermediate parallel light is then successively reflected by the second total reflection surface and the first total reflection surface, and finally exits through the light exit surface to form a high‑beam light pattern that is wide laterally and narrow longitudinally; the first total reflection surface and / or the second total reflection surface is provided with a plurality of micro‑arc concave surfaces to laterally expand the light incident from the inner lens unit, so that the exiting high‑beam light pattern is further laterally expanded and the high‑beam light pattern is more uniform.

The present application relates to the technical field of optical lenses. Provided are an optical lens, a camera module and an electronic device, which can solve the problem of camera modules in the related art occupying large space. The optical lens comprises a first lens group and a prism group arranged on an image side of the first lens group. The prism group comprises a first prism and a second prism arranged on an image side of the first prism, wherein the first prism and the second prism are both multi-reflection prisms, the first prism comprises a first incident surface and a first exit surface, the second prism comprises a second incident surface and a second exit surface, the second incident surface is disposed facing the first exit surface, and the second exit surface is disposed facing the image plane of the optical lens; and the unfolded length L of the prism group and the height H of the prism group satisfy: L / H≥1.9. The present application can be applied to electronic devices such as mobile phones.

This invention discloses a testing device and method for grating vectors. The testing device includes a light source and a light receiving component. The light source is adapted to emit a probe beam, part of which is transmitted through an optical element and part of which is diffracted and totally reflected within the optical element, forming parallel transmitted and coupled beams at the exit surface of the optical element. The light receiving component is located on the light-emitting side of the optical element and is adapted to receive the transmitted and coupled beams, and to obtain the distance L between the transmitted and coupled beams on the light-emitting surface of the optical element. This allows the testing device to obtain the grating vector based on the distance L, the thickness d of the optical element, and the refractive index n. According to the grating vector testing device of this invention, by obtaining the distance L between the transmitted and coupled beams on the light-emitting surface of the optical element, and combining this with the known thickness and refractive index of the optical element, the optical vector can be characterized. The grating vector testing device has a simple structure and is easy to operate.

An imaging lens assembly includes the plastic optical element 110. The plastic optical element includes an incident surface 111, a reflection surface 112, an exit surface 113 and a connection surface

A projection module (10) and a head-mounted display (100). The projection module (10) comprises a plurality of light-emitting panels (11), a color-combining prism (12), and light deflectors (13). Incident surfaces of the color-combining prism (12) are arranged in one-to-one correspondence with the light-emitting panels (11); the light deflectors (13) are disposed between the light-emitting panels (11) and the corresponding incident surfaces, the light deflectors (13) are configured to deflect incident light rays emitted from the light-emitting panels (11) toward the corresponding incident surfaces, and the deflection angle of the light deflectors (13) for incident light rays corresponding to edge pixels is greater than the deflection angle for incident light rays corresponding to center pixels, in order to emit incident light rays from an exit surface.

This invention provides a 3D printer light source module, comprising: a display screen light source and a lens module. The display screen light source has multiple pixel units arranged in an array. The lens module includes multiple cylindrical lenses arranged in an array. The positions of the cylindrical lenses correspond to the pixel units of the display screen light source. The cylindrical lenses are independent of each other. One end face of each cylindrical lens is the light-incident surface, and the other end face is the light-exit surface. The refractive index of each cylindrical lens gradually increases from the outer periphery to the center. This invention allows the display screen light source to be separated from the material tank and prevents the real image from being excessively magnified.

This application provides an optical lens, a camera module, and an electronic device. The optical lens body includes an incident surface, a first reflecting surface, a second reflecting surface, and an exiting surface. The incident surface and the second reflecting surface are located on one side surface of the lens body, with the incident surface surrounding the second reflecting surface. The first reflecting surface and the exiting surface are located on the opposite side surface of the lens body, with the first reflecting surface surrounding the exiting surface. Light can enter through the incident surface, be reflected sequentially by the first and second reflecting surfaces, and then exit through the exiting surface. An annular light-absorbing surface is provided between the incident surface and the second reflecting surface, and / or between the first reflecting surface and the exiting surface. The light-absorbing surface is configured as a frosted surface, a blackened surface, or a microstructured surface, and / or, a light-absorbing layer is provided on the light-absorbing surface. The aforementioned optical lens is provided with a light-absorbing structure to absorb stray light, thereby improving image quality.

An optical module, a manufacturing method thereof, and a near-eye display device. The optical module has a light incident side and a light-exiting side, and includes a first lens, a partial reflector, a phase retarder, a second lens, a reflective polarizer, and a light-transmissive structure. The reflective polarizer has a reflective axis direction and a transmissive axis direction perpendicular to each other, the light-transmissive structure has a lowest refraction direction, a refractive index of the light-transmissive structure in the lowest refraction direction for linearly polarized light parallel to the lowest refraction direction is lowest, an included angle between the lowest refraction direction and the reflective axis direction is greater than or equal to 70 degrees and less than or equal to 90 degrees, so that the reflective polarizer has a relatively large reflective polarization selectivity ratio.